/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.classfile.visitor;

import proguard.classfile.*;
import proguard.classfile.constant.*;
import proguard.classfile.constant.visitor.ConstantVisitor;
import proguard.classfile.util.SimplifiedVisitor;
import proguard.util.ArrayUtil;

/**
 * This ConstantVisitor delegates all visits to each ConstantVisitor in a given list.
 *
 * @author Johan Leys
 */
public class MultiConstantVisitor extends SimplifiedVisitor implements ConstantVisitor {
    private ConstantVisitor[] constantVisitors;
    private int constantVisitorCount;

    public MultiConstantVisitor() {
        this.constantVisitors = new ConstantVisitor[16];
    }

    public MultiConstantVisitor(ConstantVisitor... constantVisitors) {
        this.constantVisitors = constantVisitors;
        this.constantVisitorCount = this.constantVisitors.length;
    }

    public void addClassVisitor(ConstantVisitor constantVisitor) {
        constantVisitors = ArrayUtil.add(constantVisitors, constantVisitorCount++, constantVisitor);
    }

    // Implementations for ConstantVisitor.

    public void visitAnyConstant(Clazz clazz, Constant constant) {
        for (int index = 0; index < constantVisitorCount; index++) {
            constant.accept(clazz, constantVisitors[index]);
        }
    }
}
